Americans broadly and strongly disapprove of the intervention by Congress in the case of Terri Schiavo - and most believe lawmakers are using her case for political gain, according to an ABC News poll published on Monday.

Seventy percent deemed the congressional intervention inappropriate, while 67 percent said they believe lawmakers became involved in the Schiavo case for political advantage rather than the principles involved.

The telephone poll of 501 adults was taken on Sunday and has a 4.5-point error margin.

U.S. President George W. Bush early on Monday signed emergency legislation aimed at reversing the removal of Schiavo’s feeding tube ordered by a state court on Friday. The measure, which sent the case to federal court, was approved during an extraordinary weekend session of the Republican-led Congress.

Sixty-three percent of those surveyed in the ABC poll said they support the removal of Schiavo’s feeding tube.

Among two core Republicans constituencies, 54 percent of conservatives said they support removal of the tube, while evangelical Protestants divide about evenly with 46 percent support.

According to the poll, conservatives and evangelicals also were more likely to support federal intervention in the case, although the support did not reach a majority in either group.